1 day late am I pregnant ?

Cece

My cycle has been irregular since I gave birth in Jan 2022 , like I'll be late then start etc , but the last two cycles wasn't like this it was on time and etc now I'm going on my 2nd day ( already 1 day late ) and my cervix is very high , soft and closed been having aching pains in my back , sides , and uterus , very tired , and emotional ( but that's normal for my emotions ) . Could I possibly be pregnant with my 3rd and last child ?? Or I'm just over reacting I have an appointment today to see what's going on and I'll keep you guys updated but I also wanted opinions from you guys as well.